内核升级问题记录
{
    iptables -t nat -nL 提示
    iptables v1.4.7: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.



解决方法: 编译内核时加入以下模块
3.18.48  
Linux Kernel Configuration
     [*] Networking support  --->      
           Networking options  --->
             Network packet filtering framework (Netfilter)--->

}

